"At the end of a long, curving dirt driveway, inside a yellow-sided double-wide mobile home with green shutters, Tina King is juggling backpacks, signing homework, and trying to wrangle four kids out the door for school. And then her daughter, 10-year-old Tessa, says the words every parent dreads: 'Mommy, I don’t feel so good.'

"There was a time when these six words would have meant a crisis for King. Out here in southern Ohio hill country, the closest doctor is almost half an hour away, and King’s job at a bakery was more than an hour away in the opposite direction. Even if she could finagle an appointment and afford the extra gas money, she could lose as much as a whole day’s pay..."